Donald Trump is in control in the first 3 voting states

Donald Trump is heading into the Republican presidential primary
with a commanding lead nationally and in the first three voting
states.

NBC/Wall Street Journal/Marist College surveys released Thursday gave Trump a
7-point lead in Iowa, which will hold its caucus on Monday; a
19-point advantage in New Hampshire, where the first primary
takes place February 9; and a 16-point lead in South Carolina.

"Trump is positioned to run the house in these first three
states. His supporters are committed and plan to turn out," the
director of The Marist College Institute for Public Opinion, Lee
Miringoff, said in a statement. "Will it happen? The answer
depends on when or if anti-Trump sentiment will coalesce to
interrupt his march to the nomination."

Trump has long held large leads in New Hampshire and South
Carolina, but a victory in Iowa had been threatened by Cruz's
rise there over the past month. But the 7-point lead there is
part of a trend for Trump, who has led in seven of the past eight
public surveys of the state and by an average of 6 points.

Trump's lead of 32% to 25% in the Hawkeye State was a reversal
from earlier this month, when Trump trailed Cruz 28% to 24% in
the NBC/Wall Street Journal survey.